These are some great-looking coins. Along with the 1915 S half dollar (click here to see it), four gold coins were minted at the San Francisco Mint to commemorate the Panama-Pacific International Exposition held in San Francisco in 1915.

These coins all have a base value relative to their gold content. The current base value can be determined by multiplying the AGW (actual gold weight, posted below for each coin) by the current spot price of gold. Current prices can be found on kitco.com. On top of the base value, each coin carries a premium both for their historical nature as well as their appeal to collectors.

The $2.50 coin shows Columbia (a historic representation of the U.S.A.) seated atop a hippocampus (sea horse or sea monster with horse features), holding a caduceus, a symbol often associated with medicine, although in this case it is meant to represent trade and negotiation. The reverse shows an eagle. This coin has an AGW of .12 ounces.